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Crux CS-AXBM4 Auxiliary Input Adapter for BMW

Connect an audio source to the factory radio in select 2006-13 BMW models

Item # 249CSAXBM4

Crux's CS-AXBM4 auxiliary input adapter expands the functionality of your factory system without replacing the...

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Crux's CS-AXBM4 auxiliary input adapter expands the functionality of your factory system without replacing the...

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Item # 249CSAXBM4

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About the Crux CS-AXBM4 Auxiliary Input Adapter for BMW

Bring aftermarket features to your factory radio

Crux's CS-AXBM4 auxiliary input adapter expands the functionality of your factory system without replacing the radio. Simply plug this module into your vehicle's OBD-II port, and you'll be able to access an auxiliary audio input as a source through the factory touchscreen radio. Nothing else will change about your radio's functionality besides being able to use the aux input as a source, so you can keep enjoying the other radio features you're used to without worry.

Bring aftermarket features to your factory radio

Crux's CS-AXBM4 auxiliary input adapter expands the functionality of your factory system without replacing the radio. Simply plug this module into your vehicle's OBD-II port, and you'll be able to access an auxiliary audio input as a source through the factory touchscreen radio. Nothing else will change about your radio's functionality besides being able to use the aux input as a source, so you can keep enjoying the other radio features you're used to without worry.

Add an MP3 player, DVD player, or other audio source

Some folks love to stream tunes via Bluetooth® from their devices, but there's something about a direct connection that makes listening even more satisfying. If your phone or device has spotty Bluetooth performance, or if you really want to hook up that old portable disc player, you can now enjoy a wired connection to your factory BMW radio by activating the aux input with the CS-AXBM4.

Crux includes an auxiliary audio input cable, which should be connected into the female Quadlock connector of the vehicle harness on the back of the factory radio.

Convenient update

There's no need to flash the CS-AXBM4 or anything like that before you can plug it in to your vehicle's OBD-II port. Just power the car on without turning over the engine, plug the module into the OBD-II port, wait for the factory radio to reboot, then remove the module once the radio's done rebooting. You should see the auxiliary input as an available source on the stereo's display. The changes aren't permanent, so you can always go through the same steps and remove the auxiliary input as a possible source down the road.

Note: This adapter works with a number of BMW factory stereos, including most "Business" navigation models with a 6.5" screen and "Professional" navigation models with an 8.8" screen. Please enter your vehicle information or call an Advisor at 1-888-955-6000 to find out if this interface is compatible with your vehicle.

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Product highlights:

  • activate the factory auxiliary audio input controls on your factory BMW touchscreen radio
  • auxiliary audio cable included (needs to be connected to the rear of the factory radio)
  • add another source for audio such as an MP3 player or DVD player
  • does not affect other functions of the touchscreen radio
  • plugs into the vehicle's OBD-II port
  • no flashing required
  • reversible process
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # CS-AXBM4

What's in the box:

  • Interface coder module
  • OBD connector on 8" cable
  • Stereo RCA connectors (attached 25" of pinned wire)
  • Installation instructions

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More details on the Crux CS-AXBM4 Auxiliary Input Adapter for BMW

Stacey B.

Product Research

Features

Overview: The Crux AUX-BM4 Auxiliary Interface lets you add an auxiliary audio input to select 2007-2014 BMW factory sound systems. The included coder module gets temporarily plugged into the vehicle's OBD port activating the factory Auxiliary Input feature. A 25" cable, with stereo RCA jacks on one end and Molex pin-connectors on the other end, is provided with the pin-connectors getting inserted into the factory radio harness. After the coder module "flashes" the factory system, the Auxiliary Input feature will show up as an available source on the factory radio.

Compatibility: The Crux AUX-BM4 interface is compatible with BMW vehicles featuring a 10 pin LVDS (CCC, M-ASK, Champ). Also compatible with BMW Professional navigation with an 8.8" screen, and Business navigation with a 6.5" screen:

  • 1 Series:
    • 2007-2011 (E81 & E87)
    • 2007-Aug 2013 (E82)
    • 2007-Jun 2014 (E88)
  • 3 Series:
    • 2007-2011 (E90)
    • 2007-2011 (E91) Wagon
    • 2007-2012 (E92) Coupe
    • 2007-2013 (E93) Convertible
  • 5 Series:
    • 2007-2010 (E60 & E61)
  • X5:
    • 2007-2013 (E70)
  • 6 Series:
    • 2007-2010 (E63 & E64)
  • X6:
    • 2008-2012 (E71)

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